Interface Pin Signal Description
8 NC not used
Shield Cable shield Functional earth
For further information regarding wiring and cable types see chapter Ethernet
Ä
Chapter 2.6.4.10 “Ethernet Connection Details” on page 1288.
1.7.4.1.4 Internal Data Exchange
Parameter Value
Digital inputs (bytes) 3
Digital outputs (bytes) 3
Analog inputs (words) 4
Analog outputs (words) 2
Counter input data (words) 4
Counter output data (words) 8
1.7.4.1.5 Addressing
The module reads the position of the rotary switches only during power-up, i. e.
changes of the switch position during operation will have no effect until the next
module initialization.
The IP address of the CI521-MODTCP Module can be set with the “ABB IP Configuration Tool”.
If the last byte of the IP is set to 0, the address switch will be used instead.
Address switch position 255 is mapped to fixed IP 192.168.0.254 independent of other stored
settings. This is a backup so the module can always get a valid IP address and can be config-
ured by the “ABB IP Configuration Tool”.
Address switch position 0 is mapped to last byte equal 1 and DHCP enabled.
The factory setting for the IP is 192.168.0.x (last byte is address switch).
1.7.4.1.6 I/O Configuration
The CI521-MODTCP stores configuration parameters (IP address configuration, module param-
eters).
The analog/digital I/O channels are configured via software.
Details about configuration are described in Parameterization
Ä
Chapter 1.7.4.1.7 “Parameteri-
zation” on page 897.
Communication Interface Modules (S500) > Modbus
2019/04/173ADR010121, 13, en_US896
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